Experience sparkling blue waters with unprecedented clarity with DL116, a pack of 4 Swimming Pool Filter Cartridges! Apt for both DL18 and DL21 models, these cartridges ensure holistic filtration for pristine swimming environment. Bid goodbye to impurities, debris, and microorganisms as these high-grade cartridges strain out even the smallest particles with precision. Coming in a convenient pack of 4, they ensure you have a clean supply ready for a quick swap. Enhance your swimming experience with DL116, offering a consistent, clean, and healthy pool environment. Don't compromise on your pool hygiene, get DL116 for crystal-clear pool waters today!